Half to george earl church



M e h S k t e e h S 2 R H m A m TK TM "E .T R W 0 G (No Model.)

Patented Oct. 3, 1893.

(No Model.) 2 Sheets-Sheet 2.

' G. W. ETTENGER.

GAB TRUCK FRAME.

No.506,170. Patented 0 ct.3,1893.

' IlNrTnn STATES PATENT OFFICE.

GEORGE WATSON ETTENGER, OF BARROW-IN-FURNESS, ASSIGNOR OF ONE- HALE TO GEORGE EARL CHURCH, OF LONDON, ENGLAND.

CAR-TRUCK FRAME.

srEoIFIcATroN forming part of Letters Patent No. 506,170, dated ctober3, 1893.

Application filed June 15, 1893. Serial No. 477.749. (No model.) Patented in Italy June 9| 1393, LXVIL and Belgium May 24, 1893,1T0-104 '792.

To all whom it may concern:

Be it known that I, GEORGE WATSON ET- TENGER, a citizen of the United States, residing at 12 Church Street, Barrow-in-Furness,

Lancashire, England, have invented certain new and useful Improvements in the Frames of Bogie-Trucks for Railway Wagons and Carriages, (for which I have obtained Letters Patent in Italy, dated the 9th of June, 1893,

I to LXVII, 35, and in Belgium, dated the 24th of May, 1893, No. 104,792,) of which the fol lowing is a specification.

This invention relates to bogie trucks with diamond frames, that is to say, frames con- 15 sisting of two arch-bars fixed by bolts to the .upper and lower ends of vertical struts secured to the sides of the transverse bearer, bolster or bottom pivot bearing carrier of the bogie frame, the ends of such bars being fixed to the axle boxes.

I will describe my improvements in such frames with reference to the accompanying drawings in which- Figure 1 shows a side elevation of the bogie 2 5 frame and Fig. 2 a plan. Figs. 3 to 8 show enlarged details thereof.

The bogie frame is composed of an upper and lower arch bar A A secured at their middles to the upper and lower ends of struts B connected as will be presently described to each side of the transverse bearer or bolster C, that carries the lower pivot bearing, the ends of the bars A A being secured to the upper side of the axle boxes N by means of 3 5 tie bolts D passing at bottom through athird bar H also fixed to the struts B. According to my present improved construction, the bar A is extended at A some distance beyond the axle boxes and is formed with eyes A for 40 the reception of the bearing bar E of the brake rigging. This bar is constructed of a tubular form for affording strength and rigidity, the ends of the tube being made to fit onto corresponding annular projections or 5 bosses A formed round the eyes of the bar A, as shown more clearly in enlarged end view, side view, and sectional plan of these parts respectively at Figs. 3,4and 5 and they are fixed in this position by tie bolts F pass- 0 ing through the tubes and eyes, and secured by screw nuts. The eyes A have further more inclined lugs A on their outer sides through holes in which pass the threaded ends of struts G that extend in an upward slanting direction from the outer tie bolt of the axle box, beneath the bar H thus forming with the extension A -of the arch bar A, a strong bracket projecting from the side of the axle box for carrying the said tubular bearer E and the part of the brake gear sus- 6o pended therefrom, and for withstanding the thrust of the brake shoes. The strut G has nuts G above and below the lug, A so that by the adjustment of these nuts the position of the bar E can be accurately adjusted. The tubular distance pieces or struts B are situated on each side of the transverse bearer or bolster C, that carries the truck pivot, to which bearer and to the bars A A they are connected as shown more clearlyin sectional front view at Fig. 6, sectional side view at Fig. 7, and sectional plan at Fig. 8. Embossed Washers I are fitted on the inner surfaces of the bars A A which they overlap by means of flanges as shown at Fig. 7, and over the circular bosses of these washers fitthe ends of the struts B, the tie bolts J being passed through the struts, the washers and the top and bottom bars, thus securing the whole firmly together. b

On the struts B are fitted tubular sleeves, K K, the upper sleeves K being capable of sliding on the struts. These sleeves are formed with projecting flange pieces or .lugs K which bear against the side surfaces of the transverse bearer or bolster C and are fixed securely thereto by bolts L. The lower sleeves K are also secured by flange pieces K to the sides of the bottom transverse bearer or spring plank 0 between which and 9 the upper bearer or bolster C are placed bearing springs M Figs. 1 and 2, in the usual manner. Thus when the transverse bearer C is subject to vertical play on the bearing springs in running, the sleeves K in sliding on the struts B afford perfect freedom to such motion, and the strains received in moving over the line are distributed among the several members, instead of being withstood by a single one, as is usually the case.

The transverse bearer or bolster C is, according to my invention constructed as a box girder, as shown, thus combining great strength with lightness. The spring plank C is of a trough shaped section.

Having thus described the nature of my said invention and the best means I know for carrying the same into practical effect, I claim- 1. In abogie frame, the combination of upper arch bars A having extension A with eyes A and lugs A lower arch bars A tubular struts B embossed and flanged washers I, tie bolts J sleeves K K with flange pieces K K transverse bearer or bolster 0, spring plank 0, bearing springs M, bars H, struts G, tubular bearing bars E and tie bolts F, axle boxes N and tie bolts D, arranged and operating substantially as described.

2. In a bogie frame, the combination with upper and lower arch bars A A embossed and flanged Washers I and tubular struts B, of a transverse bearer or bolster G to which are secured sleeves K capable of sliding upon the struts B so as while securing the bearer U to the struts to allow it freedom for vertical play substantially as described.

3. Inabogie frame the combination of arch bars A having extensions A with eyes A having annular bosses A and lugs A struts G with adjusting nuts G, and tubular bearing bars E for the brake gear fitting with their ends upon the bosses A and secured by tie bolts F, substantially as described.

4. In a bogie frame the combination with the arch bars A A, tubular struts B and tie bolts J, of washers I with embossed parts fitting into the tubular struts, and flanges fitting over the arch bars, substantially as described.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, this 9th day of May, A. D. 1893.

GEORGE WVATSON ETTENGER.

Witnesses:

CHAS. D. ABEL, Chartered Patent Agent, 28 Southampton Buildings, London, W C

JNo. P. M. MILLARD, Clerk to llIessrs. Abel at; Imray, Consulting Engineers and Patent Agents, 28 Southampton Buildings, London, W. 0. 

